1 04 T/je Anator^y ofaWOKS'E. 



I Dd th t' ^^^ Emulgent Arteries, one on each Side, 



^ J ' whit h goto the Kidneys; and below thefe 



frorn the main Trunk alio arile the Spennaticki^ which go 

 to the Tejlicles and Ovaria, &c. Then the lower Me- 

 fetiierick communicating with the upper, fuppiy the whole 

 Mefentery. 



As foon as tl^e Trunk of the great Artery has reached 

 the Top of the Os SucrwiK it divides itfelf into two equal 

 Branchcii, called the Iliac l:s^ which are again fubdivided 

 into the E, eternal and Inter naL From the Internal pro- 

 ceed thofe called 'Mujcula:^ which are btftowed on the Pfoas 

 and Mufcles of the Piuttocks ; as alfo the Hypogajhlch, 

 which run to the fireight Gut, the Matrix, and Bladder, 

 the Prcjlates and \ ard, and to all the other Parts con- 

 tained within tlie Pelvis. From the External Iliacks 

 arile IJrft tliS Epigailrick y^rterie;, which turning for- 

 ward?, creep along the Outfide of the Rim of the Belly, 

 ns far as the Navel, where they meet the MammlUary. 

 The next are thofe called thp Pudenda, w4iich go to the 

 Privities of boti! Sexes. Afterwards the Ihack Branches 

 go to the Thighs, and are then called the Crural Arteries y 

 iupplying the bind Legs and Feet with many confiderable 

 Branches. 



This 13 the Order and Diilribution of the principal Ar- 

 teries of almoft all Animals, each of which Arteries arc 

 fubdivided into others, and thefe again into others, till at 

 laft the whole Body is overfpread with molt minute capil- 

 lary or Haiv-like Arteries, which frequently communicate 

 cne with another ; lo that when any fmall Artery is ob- 

 ftrucled, the Blood is brought by the communicating 

 Branches to the Parts below the Oblliu61ion, which muft 

 otherwife have been depriv'd of its Nourifhment. Nature 

 has obferv'd the lame Oeconomy in the Diftribution of the 

 Veins, that in cafe any Vein lliould be obftrudted, the 

 Elood might not ftagnate, but be alfo return'd by other 

 communicating Branches. 



^i . , . But before I proceed to an Account of 



ujerx/ironp, ^^^ Vems, 1 lliall oblervc-fartlier concern- 

 Afid enaued 'tig ^^^ Arteries, that as it is their peculiar 

 •With a spring. Province to carry ilie Blood from the Heart, 

 and diflribute it into all Parts of the Body, 

 they are perfectly f.tted for that Purpofc by their Struc- 

 ri'.res : For an Artery being compofcd of three Coats, the 

 ni'ddjemort \fi:y llrong, and endued with Elafticity, by 



virtue 



